ActiveSupport::BufferedLogger.class_eval do def add_with_memory_info(severity, message = nil, progname = nil, &block) str = "\t\e[1;31mMemory usage:\e[0m #{Memorylogic.memory_usage}" add_without_memory_info(severity, message + str, progname, &block) end alias_method_chain :add, :memory_info end